Choose the Correct Reason for Severe Hypoxia Occurring with Pulmonary

Choose the correct reason for severe hypoxia occurring with pulmonary edema:

A) Diffusion of oxygen into the pulmonary capillaries is impaired.
B) Fluid in the pleural cavity prevents normal lung expansion.
C) Increased concentration of CO₂ impairs diffusion of oxygen.
D) Increased blood flow through the lungs prevents diffusion of gases.